selvaganesang commented on a change in pull request #1786: [TRAFODION-3260]
SSMP may wait 3 seconds before handling requests
URL: https://github.com/apache/trafodion/pull/1786#discussion_r252517219
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File path: core/sql/runtimestats/ssmpipc.cpp
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@@ -540,7 +540,7 @@ static Int64 SikGcInterval = -1;
void SsmpGlobals::work()
{
- getIpcEnv()->getAllConnections()->waitOnAll(getStatsMergeTimeout());
+ getIpcEnv()->getAllConnections()->waitOnAll(0);
Review comment:
I got it now. My understanding is that we wait for openers or messages from
openers in XWAIT. If there are open messages, it is consumed at cc->wait(0) and
if there are messages from openers it is consumed here. But we wake up every 3
seconds to do bookkeeping.
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